To make the Heart Tender (Ar-Riqaq)

Bukhari :: Book 8 :: Volume 76 :: Hadith 442

Narrated Mirdas Al-Aslami:

The Prophet said, "The righteous (pious people will depart (die) in succession one after the other, and there will remain (on the earth) useless people like the useless husk of barley seeds or bad dates, and Allah will not